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Search took 0.05 seconds. Search: Posts Made By: Number_Cruncher
Forum: Diesel Discussion 07-14-2011, 02:30 PM
Replies: 72
Views: 11,195
Posted By Number_Cruncher
The car was at 125,000 miles when I found the...

The car was at 125,000 miles when I found the problem and had the head off. It's now approaching 200,000, and I suspect the problem is coming back again.

In terms of finding the root cause of the...
Forum: Diesel Discussion 07-14-2011, 07:55 AM
Replies: 72
Views: 11,195
Posted By Number_Cruncher
>>Do a hot compression test and you'll find #5 #4...

>>Do a hot compression test and you'll find #5 #4 to be low.

>>It's called valve recession.

Yes!, that's exactly why I was suggesting a compression test higher up the thread.

One cheaper way...
Forum: Diesel Discussion 08-09-2010, 08:51 AM
Replies: 21
Views: 3,079
Posted By Number_Cruncher
When a good quality glow plug has a short life,...

When a good quality glow plug has a short life, it may be worth checking the injectors for opening pressure and spray pattern - if there's a problem here, the new glow plugs won't last long either.
...
Forum: Diesel Discussion 08-04-2010, 05:05 PM
Replies: 4
Views: 632
Posted By Number_Cruncher
>>the rearmost cylinder is almost always 10-20...

>>the rearmost cylinder is almost always 10-20 degrees cooler.

OM606?

If so, check the compressions sooner rather than later in your list of work to do.

Sorry, but, these are classic...
Forum: Diesel Discussion 08-03-2010, 10:32 AM
Replies: 9
Views: 764
Posted By Number_Cruncher
>>as soon as I plug the lamp in, there is no...

>>as soon as I plug the lamp in, there is no voltage at those 3 prongs!

This is the true situation, and as others have written, it indicates that there is a high resistance somewhere else in the...
Forum: Diesel Discussion 07-27-2010, 05:13 PM
Replies: 15
Views: 1,489
Posted By Number_Cruncher
>>unless you are using a digital micron gauge. ...

>>unless you are using a digital micron gauge.

I think it's well worth using a vacuum gauge that can measure down into the hudreds of microns range. It's quite sensitive even to small vacuum...
Forum: Diesel Discussion 07-23-2010, 05:55 AM
Replies: 6
Views: 971
Posted By Number_Cruncher
Which injector pump is fitted to your car?, an...

Which injector pump is fitted to your car?, an inline one, or a distributor type?
Forum: Diesel Discussion 07-03-2010, 05:17 PM
Replies: 9
Views: 781
Posted By Number_Cruncher
While the car is warming up, is there any return...

While the car is warming up, is there any return flow from the pump?

The fuel should flow through the pump, and back to the tank to keep the IP cool - however, if there's a problem with fuel...
Forum: Diesel Discussion 07-01-2010, 06:21 PM
Replies: 21
Views: 8,381
Posted By Number_Cruncher
Yes, diesels are very popular here. In the...

Yes, diesels are very popular here.

In the period when W123s were current, diesel cars in the UK were of minority interest - most car diesel engines of the time were rather poor - I was considered...
Forum: Diesel Discussion 06-30-2010, 11:44 AM
Replies: 21
Views: 8,381
Posted By Number_Cruncher
I use a variation on this theme. First,...

I use a variation on this theme.

First, flush new brake fluid through to a caliper.

Then, using some flexible hose, connect the bleed nipple on the brake caliper with the bleed nipple on the...
Forum: Diesel Discussion 01-20-2010, 05:21 PM
Replies: 15
Views: 3,989
Posted By Number_Cruncher
I would imagine that the natural frequency of the...

I would imagine that the natural frequency of the centrally supported flap in bending will be quite high, and I struggle to see how normal engine vibrations could cause a problem.

I wonder if the...
Forum: Diesel Discussion 01-20-2010, 06:30 AM
Replies: 27
Views: 2,479
Posted By Number_Cruncher
At some point, someone has fitted the incorrect...

At some point, someone has fitted the incorrect fuel filter bolt to your car. It should have a stop valve on it rather than just being a plain bolt.
Forum: Diesel Discussion 01-20-2010, 06:23 AM
Replies: 72
Views: 11,195
Posted By Number_Cruncher
>>The soot layer in the #6 intake ports in the...

>>The soot layer in the #6 intake ports in the head (I have the intake off because the resonance valve has half of the vain broken off for the second time) is substantially heavier than the the other...
Forum: Diesel Discussion 01-18-2010, 05:35 PM
Replies: 72
Views: 11,195
Posted By Number_Cruncher
Check the compressions. These engines can...

Check the compressions.

These engines can suffer inlet valve recession, particularly on the rearmost cylinders.

The engine fires on the good compressions of the forward cylinders, and is OK...
Forum: Diesel Discussion 11-28-2009, 08:48 PM
Replies: 11
Views: 2,521
Posted By Number_Cruncher
A useful tip for angle tightening cylinder head...

A useful tip for angle tightening cylinder head bolts is after the torque stages, mark the bolt heads with a dab of paint.

If you mark all the bolt heads with a dab of paint, say, pointing towards...
Forum: Diesel Discussion 11-28-2009, 11:33 AM
Replies: 17
Views: 1,628
Posted By Number_Cruncher
>>I run higher tire pressures than MB reccomends ...

>>I run higher tire pressures than MB reccomends

As long as you keep the rear pressure higher, i.e., maintain or even increase the differential, then, you'll be OK. In some of their handbooks, MB...
Forum: Diesel Discussion 11-27-2009, 04:35 PM
Replies: 17
Views: 1,628
Posted By Number_Cruncher
>>But do YOU know the good reasons? Yes, of...

>>But do YOU know the good reasons?

Yes, of course I do.

Generally, mechanics are not experts in vehicle dynamics. Yes, they spend all day on the tools, but, their experience of engineering of...
Forum: Diesel Discussion 11-27-2009, 08:27 AM
Replies: 17
Views: 1,628
Posted By Number_Cruncher
>>so he upped the rear pressure to 40 and put 44...

>>so he upped the rear pressure to 40 and put 44 up front

That is really bad. Merc recommend higher pressure in the rear for good reasons. I think your mechanic may be a bit of a clown.
Forum: Diesel Discussion 10-30-2009, 11:28 AM
Replies: 6
Views: 1,409
Posted By Number_Cruncher
The multilink rear suspension has lots of joints...

The multilink rear suspension has lots of joints and bushes to fail, however, it's more common to find the bushes which hold the front edge of the rear subframe to the body have failed. This tends...
Forum: Diesel Discussion 10-25-2009, 01:41 PM
Replies: 6
Views: 992
Posted By Number_Cruncher
Hi Olivier, Is there no gasket between the...

Hi Olivier,

Is there no gasket between the rear cover and the diff housing?
Forum: Diesel Discussion 10-01-2009, 01:58 PM
Replies: 20
Views: 2,811
Posted By Number_Cruncher
>>I thought that for the later model Mercedes...

>>I thought that for the later model Mercedes they have a Fleece type Oil Filter for the exteded drian periods using synthetic Oil.

Yes, that's true.

In no way can 10K be considered an extended...
Forum: Diesel Discussion 09-29-2009, 07:07 PM
Replies: 18
Views: 6,487
Posted By Number_Cruncher
The problem isn't to do with corrosion or the...

The problem isn't to do with corrosion or the threads at all.

What happens is that combustion gas gets past the taper seal, and carbon gets rammed into the cylindrical gap between the glow plug...
Forum: Diesel Discussion 09-29-2009, 08:03 AM
Replies: 14
Views: 899
Posted By Number_Cruncher
>>http://www.beru.com/download/produkte/TI04_e.pdf...

>>http://www.beru.com/download/produkte/TI04_e.pdf

See page 15
Forum: Diesel Discussion 09-16-2009, 07:44 AM
Replies: 22
Views: 4,715
Posted By Number_Cruncher
Hi Olivier, >>but run well on WVO :) Is...

Hi Olivier,

>>but run well on WVO :)

Is that really true?

I know you're a veg devotee, but what would have to happen to convince you that you're not doing your engine much good using this...
Forum: Diesel Discussion 09-10-2009, 06:37 AM
Replies: 13
Views: 2,659
Posted By Number_Cruncher
When the valve stem oil seals are working well -...

When the valve stem oil seals are working well - which they generally do! - the sealing face of the inlet valve gets very little lubrication other than from the oil mist in the crankcase ventilation...
Forum: Diesel Discussion 08-12-2009, 03:20 PM
Replies: 37
Views: 6,827
Posted By Number_Cruncher
>> Elementary math seems to have eluded me there...

>> Elementary math seems to have eluded me there for a minute.

Actually, it had eluded me.

The swept volume S remains unchanged - so, 600 remains 600, not 607.

D'oh!

So,
Forum: Diesel Discussion 08-11-2009, 04:45 PM
Replies: 37
Views: 6,827
Posted By Number_Cruncher
>>Forgive me for asking... Yes, and ..... no...

>>Forgive me for asking...

Yes, and ..... no

However, you raise an interesting point.

One way of writing the equation for compression ratio is

CR = (S/C) + 1
Forum: Diesel Discussion 07-27-2009, 05:45 PM
Replies: 28
Views: 16,524
Posted By Number_Cruncher
My 1995 W124 E300D has the one touch electric...

My 1995 W124 E300D has the one touch electric windows. If I hold down the button on the infra red remote locking control, the red light continues to flash for a bit, and the electric windows (the...
Forum: Diesel Discussion 07-26-2009, 10:03 AM
Replies: 17
Views: 40,270
Posted By Number_Cruncher
Yes, it's an auto, with the 722.435. Quite...

Yes, it's an auto, with the 722.435. Quite right, it wouldn't be happy coping with the extra output from a turbo, and I would have to use a 722.3xx gearbox - there would be little chance of me using...
Forum: Diesel Discussion 07-25-2009, 12:39 PM
Replies: 17
Views: 40,270
Posted By Number_Cruncher
All UK 603s were NA - apparently there was too...

All UK 603s were NA - apparently there was too much difficulty in fitting a turbo to a RHD car, as the exhaust and steering box wanted to share the same space! We had to wait until the later W210s...
Showing results 1 to 30 of 357
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